Alfred e



(No Model.)

A. E. DETWILER. GAS STOVE BURNER.

N0.575,051. I v Patented Jan. 12, 189 7.

0 GI I I 7550/7": I I III! I I. W 5 w 6% I w! i ozmgs mz uonms PEYERSco, PHoTo-Lm-m. WASHINGTON u c NITED STATES PATENT OFFICE.

ALFRED E. DETlVILER, OF MIL\VAUKEE, WVISCONSIN, ASSIGNOR TO THEMILIVAUKEE GAS STOVE COMPANY, OF SAME PLACE.

GAS-STOVE BURNER.

SPECIFICATION forming part of Letters Patent No. 575,051, dated January12, 1897. Application filed October 26,1891. flerial No. 409,767. (Nomodel.)

To ail whom it may concern.-

Be it known that I, ALFRED E. DETWILER, of Milwaukee, in the county ofMilwaukee and State of \Visconsin, have invented certain new and usefulImprovements in Gas- Stove Burners; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it pertains to makeand use the same, reference being had to the accompanying drawings, andto the letters of reference marked thereon, which form a part of thisspecification.

The main obj cot of my invention is to facilitate the lighting andregulation of the burners, which are inclosed in the stoves or ovens orare not easily accessible.

It consists, essentially, of a burner comprising two parts, one having agas supply and regulating connection and another having a telescopingconnection therewith and constructed and arranged to be withdrawn,lighted, and burned outside of said casing, and in that position tocommunicate its flame to a portion of the burner within through asuitable opening in the casing.

In the accompanying drawings like letters designate the same parts inthe several figures.

Figure 1 is a vertical section of a gas-stove supplied with my improvedburner. Fig. 2 is a vertical axial section, on an enlarged scale, of aportion of a burner embodying my improvements. Fig. 3 is a horizontalaxial section of the same, and Fig. 4 is a plan view of another kind ofburner provided with a modification of my lighting and regulatingdevice.

Referring to Figsfl to 3, inclusive, A A represent the ovens of anordinary gas stove or range, and B a horizontal burner-space commonlyinclosed between them. Frequently, however, this inclosed burner-spaceis dispensed with and the burner is placed directly in the upper part ofthe lower oven itself.

0 is a tubular burner of the usual construction employed by me in stovesof this class, extending horizontally through the space 13 from thefront to the rear walls of the stove. It is provided on opposite sideswith a series of perforations extending approximately the entire lengthof the burner, and has a gas and air supply and regulating connection 0,

commonly called a mixing-chamber. As heretofore constructed theseburners have been reached through small openings in the walls or casingof the stove or, in certain cases, from below, for the purpose oflighting. An inspection for the purpose of regulation has been obtainedonly with difficulty by stooping so as to view the flame either throughthe small openings in the walls of the oven adjacent to the burners orfrom the open space below. To obviate these objections, I provide theburner with a telescoping extension D, having one or more apertures forthe discharge of gas similar to those in the burner inside of the wallsof the stove. It is constructed and arranged to be drawn out through anopening made for the purpose in the wall of the stove, so as to exposethe aperture or apertures in said extension, as shown in Figs. 1 and 2.The sides of the aperture in the wall of the stove, through which theextension D projects, are extended adjacent to and in line with theopenings of the burner, as shown in Fig. 3, so that when the gasescaping from the aperture or apertures outside of the stove is ignitedthe flame will pass along and light the gas escaping from the aperturesinside of the stove. The extension D may be made to telescope inside ofthe burner B as well as outside, as shown in the drawings, and variousdevices may be employed for limiting its movement at the proper pointsand hold it in the proper position. I have shown for the purpose a pind, secured at the ends in the inner end of the extension D and passingthrough longitudinal slots b b in the sides of burner B. These not onlylimit the lengthwise movement of the extension D, but prevent it fromturning, so as to carry the apertures in its sides out of line with thecorresponding apertures in the sides of the burner. The slots 1) b alsoserve to carry the flame from the extension D when Withdrawn to theburner within the casing.

Various changes in the details of construction and arrangement of thedevice may be made in applying it to burners of diiferent forms andemployed in different relations within the intended scope of myinvention.

Referring to Fig. 4, showing another form of tubular burner and amodification of my improvement, 0 designates the air and gas supplyconnection and mixing-chamber of the burner extending through or intothe stove or oven, and C the other or main part of the burner projectingat one end through an opening in the casin g of the stove or oven, inwhich it is free to slide in and out parallel with the mixing-chamber c.It is formed or provided at its protruding end with a returnbend D whichprojects inwardly through another opening in the casing and has atelescoping connection with the mixing-chamber 0. By this means one endof the movable part C of the burner may be withdrawn, so as to expose aportion of its gas-discharge apertures outside for the purpose oflighting and regulation, thus subservin g the same end as theconstruction hercinbefore described. Openings are formed in the casingon each side of the movable part 0' of the burner in line with thediseharge-apertures therein, so as to allow the flame of the burneroutside of the casing to communicate itself to and light the gas issuingfrom that part of the burner within the casin g. After the burner hasbeen lighted and regulated it is thrust back and burns entirely withinthe casing. It will be understood that the supply of gas to themixing-chamber c or c of either form of the burner is regulated andcontrolled in the usual manner by a cook or valve (not shown) in thegas-supply pipe of the stove. It will be observed also that in bothforms of the device herein shown and described as embodying my inventiona part of the burner having a gas-discharging aperture or aperturescorresponding in area for any given length with. that or those of theother part of the burner is constructed and arranged to be withdrawn,lighted, and burned at will outside of the easing of the stove or ovenand to communicate its flame through a suitable opening or openin gs insaid casin g to that part of the burner inclosed and concealed by thecasing, so that the condition of the flame within the oven or stove maybe determined from that outside and regulated accordingly by means ofthe cock or valve in the gas-supply pipe, and that when the burner hasbeen thus lighted and the flame regulated the exposed portion burningoutside of the casing maybe thrust back into the stove or oven withoutdisturbing the adjustment of the flame inside.

I claim- 1. In a gas-stove the combination with the casing, of a burnercomprising two parts, one having a gas supply and regulating connectionand the other a telescoping connection therewith, and constructed andarranged to be withdrawn, lighted and burned outside of said casing, andin that position to communicate its flame to a portion of the burnerwithin through a suitable opening in the casing, substantially as andfor the purposes set forth.

2. A gas-burner for ovens, ranges, &e., provided with a telescopingextension, having one or more gas-discharge apertures outside of thewall or casing of the oven or range when said extension is drawn out,substantially as and for the purposes set forth.

A gas-burner for ovens, ranges, &e. havin g gas-discharge aperturesinside of the oven or range, and a teleseopin g extension, havingcorresponding apertures which maybe drawn out and exposed for thepurpose of lighting and regulation, outside of the wall or casin g ofthe oven or range, said burner being provided with stops for limitingthe movement of said extension, substantially as and for the purposesset forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

\Vitnesses:

OHAs. L. Goss, E. G. Asnus.

